I mean, I get flams, but I have no issues getting volume with one stick. Have you ever been double bounced on a trampoline? Because that is kinda what happens when you do this. Plus I have also seen it sound awful from time to time for the same reason that it cancels the drum from resonating.
Now, if you are a seasoned drummer, looking to get fancy and creative in your solos and want your own style (max could fall into this category) I say go ahead and get weird with it. As far as a book, if you are writing it for newer students, I see almost no point in teaching them to hit a drum with both sticks at the same time. Short of a pad exercise, or hitting 2 DIFFERENT drums at the same time, there is almost no point.
Just my opinion, but there is a reason it's not common in notation and you don't see anyone else teaching this.